Beneficiarys certificate certifying that no prisoner and no children have been emplyed in the production of products comprised in this L/C.
请教老师：
1. 此处certifying 使用方法;
2. 我感觉从语法和句意上来讲certifying都能舍去，请问老师对吗？
Beneficiarys certificate certifying that no prisoner and no children have been emplyed in the production of products comprised in this L/C.
这并非一个完整的句子，而只不过一个名词词组，即Beneficiarys certificate 被目前分词短语certifying that no prisoner and no children have been emplyed in the production of products comprised in this L/C 后置修饰。目前分词短语可以改为定语从句：
Beneficiarys certificate which certifies that no prisoner and no children have been emplyed in the production of products comprised in this L/C.
comprised in this L/C.为过去分词短语作定语，修饰products, 等于 included in this L/C.
